PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 9084450-2 1997 The importance of the N-linked oligosaccharides on MAG were determined by removal of the eight predicted carbohydrate addition sites by site-directed mutagenesis. n-linked oligosaccharides 22-47 myelin associated glycoprotein Homo sapiens 51-54